<template>
  <div>
    <!-- 面包屑导航 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>数据统计</el-breadcrumb-item>
      <el-breadcrumb-item>数据报表</el-breadcrumb-item>
    </el-breadcrumb>

    <!-- 卡片区域 -->
    <el-card>
      <div id="main" style="width: 700px; height: 400px"></div>
    </el-card>
  </div>
</template>

<script>
import * as echarts from 'echarts'
import _ from 'lodash'

export default {
  data() {
    return {
      //报表配置数据1 待会要和 服务端 返回的 配置数据2 合并成一个对象 再设置给 报表
      options: {
        title: {
          text: '用户来源',
        },
        tooltip: {
          trigger: 'axis',
          axisPointer: {
            type: 'cross',
            label: {
              backgroundColor: '#E9EEF3',
            },
          },
        },
        grid: {
          left: '3%',
          right: '4%',
          bottom: '3%',
          containLabel: true,
        },
        xAxis: [
          {
            boundaryGap: false,
          },
        ],
        yAxis: [
          {
            type: 'value',
          },
        ],
      },
    }
  },
  created() {},
  //视图渲染接收后 执行
  async mounted() {
    //初始化一个 报表对象（并指定 容器dom）
    const myChart = echarts.init(document.getElementById('main'))
    // 指定图表的配置项和数据
    const { data: resData } = await this.$http.get('reports/type/1')
    if (resData.meta.status !== 200) {
      return this.$message.error(resData.meta.msg)
    }
    // 使用刚指定的配置项和数据显示图表
    const newData = _.merge(this.options, resData.data)
    myChart.setOption(newData)
  },
}
</script>

<style lang="less" scoped>
</style>